Industrial control mainly refers to the computer, microelectronics, and electrical methods to make factories’ production and manufacturing processes more automated, efficient, precise, controllable, and visible. The emergence of industrial control has improved the safety and accuracy of the manufacturing industry and solved the originally required industrial needs such as temperature, pressure, gas flow, and liquid flow. Transform the work that originally required semi-automation and manual work into automation.
Industrial control is widely used in all aspects of industry and people’s lives. For example, road and bridge control charging system, medical equipment, environmental protection monitoring, communication security, intelligent traffic control system, building monitoring and security, voice call center, queuing machine, POS counter cash register, CNC machine tools, fuel dispenser, financial information processing, petrochemical data Collection, and processing, geophysical exploration, portable field operation, environmental protection, military industry, electric power, railway, highway, aerospace, subway, intelligent building, outdoor advertising, etc.
The emergence of industrial control technology has improved the efficiency of the manufacturing industry. The more widely used industrial control products include IPC, PLC, converter, and servo motor.
IPC computer
IPC is a general term for tools that use a bus structure to detect and control the production process, its electromechanical equipment, and process equipment. It has important computer attributes and characteristics, such as CPU, hard disk, memory, peripherals and interfaces, a real-time operating system, control network and protocols, computing power, friendly man-machine interface, etc. The industrial computer consists of the following and part of the composition:
All-steel chassis: designed according to the industry standard, anti-shock, anti-vibration, anti-electromagnetic interference, can be installed with PC-bus compatible backboard.
Backboard:The slots of the passive backboard consist of bus expansion slots. The bus expansion slot can be composed of multiple slots for expanding the ISA bus, PCI bus, PCI-E bus, and PCIMG bus according to the user’s actual application. I/O cards, etc.
Industrial power supply: In the early days, the previous industrial computers mainly used Intel Pentium processors as AT switching power supplies. Like PCs, they mainly used ATX power supplies, with an average trouble-free running time of 250,000 hours.
CPU card: There are many kinds of IPC CPU cards, and motherboard users can choose any according to their needs. Its main features are:
Other Accessories: Other accessories of IPC are compatible with PC, mainly including memory, graphics card, hard disk, floppy drive, keyboard, mouse, CD-ROM, monitor, and so on. The standard length of the industrial control chassis is 19 inches, and the height is 4U.
PLC (Programmable Logic Controller)
PLC has the advantages of stability and reliability, low price, complete functions, flexible and convenient application, and convenient operation and maintenance. The fundamental reason why it can occupy the market for a long time. We will focus on several issues below and study its development trend.
The hardware of the PLC controller itself adopts a building block structure, and the product structure of each manufacturer is similar. Taking Japan’s Omron C200HE as an example, it is a bus frame architecture. The CPU motherboard is equipped with a CPU module, and other slots are equipped with I/O modules; if the I/O module.
In addition to the general DI/DO, and AD/DA modules, the I/O modules in the PLC have also developed a series of I/O modules with special functions, which opens the way for PLCs to be used in all walks of life, such as for barcodes ASCII/BASIC template for identification, PID template for feedback control, high-speed counting template for operation control, machining, single-axis position control template, dual-axis position control template, cam positioner, RFID interface, etc.,
The CPU in the PLC cooperates with the memory to complete the control function. It differs from the DCS system, which deals with parameters such as temperature, pressure, flow, etc. It adopts a fast circuit scanning period, generally 0.1~0.2s, and a faster scanning period of 50ms or less. It is a digital sampling control system.
Industrial control instrument
Focus on developing main control system devices based on Fieldbus technology and intelligent instruments, special and special automation instruments; comprehensively expand service fields, and promote the digitization, intelligence, and networking of instrumentation systems.
Electrical instrument
Electrical instruments and meters focus on developing long-life electric energy meters, electronic watt-hour meters, special-purpose electric measuring instruments, and automatic management systems for power grid metering.
Test instrument
Scientific testing instruments focus on developing process analysis instruments, environmental monitoring instruments, industrial furnace energy-saving analysis instruments, auto parts dynamic balance, power test and vehicle performance detectors, geodetic instruments, and electronic speed testers required by basic industries. , measuring GPS and other new products such as testing machines and laboratory instruments.
Environmental protection instruments
Environmental protection instrumentation focuses on developing environmental protection monitoring instrumentation, sampling system, and environmental monitoring automation control system for the atmospheric and water environment.
Electrical measuring instrument
Information technology electrical measuring instrument mainly develops software-based and intelligent technology of electrical measuring instrument, bus-type automated test technology, comprehensive automatic test system, new component measurement technology and test instrument, online test technology, information test technology, multimedia measurement technology, And the related test equipment, power monitoring, and management technology.
Converter
The converter is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the motor’s working power supply frequency.
The converter is composed mainly of rectification (AC to DC), filtering, inverter (DC to AC), braking, drive, detection, and micro-processing. The inverter adjusts the voltage and frequency of the output power supply by switching on and off the internal IGBT and provides the required power supply voltage according to the motor’s actual needs, thereby achieving energy saving and speed regulation. In addition, the converter also has many protection functions, such as overcurrent, overvoltage, overload protection, etc. With the continuous improvement of industrial automation, frequency converters have also been widely used.
Servo Motor
The Servo motor is the engine that controls the operation of mechanical components in the servo system and is an auxiliary motor indirect speed change device.
The servo motor can control the speed, the position accuracy is very accurate, and it can convert the voltage signal into torque and speed to drive the control object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an executive element. It has the characteristics of a short electromechanical time constant and high linearity, which can convert the received electrical signal into the motor shaft. It is divided into two categories: DC and AC servo motors. Its main feature is that when the signal voltage is zero, there is no rotation phenomenon, and the speed decreases uniformly with the increase of torque.
PCB Category | Multilayers | LED | High Frequency | Aluminum | Thick Copper | High Tg | HDI | Flexibile | Rigid-Flex |
Industrial Control | x | x | x | x | x | x |
Layers: 12 L Thickness: 2.0mm
Out Layer Copper Thickness: 1 OZ
Inner Layer Copper Thickness: 1 OZ
Min Hole Size: 0.2mm Min Line Width: 3mil
Surface Finish: HASL
Application: Light Control
Layers: 4 L Thickness: 1.6mm
Out Layer Copper Thickness: 1 OZ
Inner Layer Copper Thickness: 1 OZ
Min Hole Size: 0.25mm Min Line Width: 5mil
Surface Finish: ENIG
Application: CCTV
Layers: 10 L Thickness: 3.0mm
Out Layer Copper Thickness: 1 OZ
Inner Layer Copper Thickness: 1 OZ
Min Hole Size: 0.3mm Min Line Width: 5mil
Surface Finish: HASL
Application: Lift Control
Industrial control products have high requirements for durability and stability, and it is advisable to select an experienced contract manufacturer (CM) when developing a supplier.
Certification
All of Eashub’s factories pass ISO9001 certification, and our plant that focusing on industrial products also own ISO 13485 certification, EMI 2.0 certification, and the products produced meet IPC-2 requirements
Engineering experience
Surface Mounting
Our factory owns hybrid SMT machines that support bigger sizes of component mounting and assist customers in developing assembly kits.
Strange parts performing Capability
Industrial control product frequently use high voltage IGBT, Mosfet, which need performing and assembly first with heatsink
BGA rework
We have the capability of assembly BGA package and BGA rework
High Power/High Pressure/High Temperature
We have the experience of High Power/High Pressure/High Temperature
THT Technology
As well as rich THT experience, to meet customers’ experience in building robust industrial PCBAs in environments involving vibration or pressure.
EMI standards
Our strategic factories also meet this standard of EMI2.0, which meets the basic performance and safety requirements of medical equipment in the presence of electromagnetic interference.
IPC Complaint Bonding Work
Automated Optical Inspection
Automatic Conformal Coating
Aqueous Washing
PCB with In and Flux-Less Soldering
Compared with personal computers, industrial computers must have the following advantages:
The steel chassis has high anti-magnetic, dust-proof and shock-proof ability.
Dedicated backboard, there are PCI and ISA slots on the backboard.
A special power supply, power supply has a strong anti-interference ability.
Continuously working ability
Compared with personal computers, their disadvantages as follows:
The configuration hard disk capacity is small;
Data security is low;
The storage selectivity is small.
The price is higher.